From SFGate.com

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Tested across rain, dust, potholes and city traffic, these bags prove they can handle the ride—and the gear.

Commuting to work, heading out for a long weekend ride or just running errands around town? A solid bike bag can make any trip a lot easier without needing to bring a larger backpack. The right one keeps your gear secure, your back sweat-free, and your essentials right where you need them. With options that hold up to 25 liters of cargo — everything from laptops and clothes to snacks and tools — it is not a question of if you need a bike bag, but which one.